Grafton is located in Jersey County, Illinois. Grafton has a 2025 population of 57,882 . Grafton is currently growing at a rate of 0.61% annually and its population has increased by 2.54% since the most recent census, which recorded a population of 56,447 in 2020.
The average household income in Grafton is $149,777 with a poverty rate of 3.41%. The median age in Grafton is 40 years: 40.1 years for males, and 40 years for females. For every 100 females there are 98.6 males.
Data after 2023 is projected based on recent change
The racial composition of Grafton includes 80.41% White, 6.92% Asian, 3.2% Black or African American, and smaller percentages for other race, Native American and multiracial populations.
White (80.41%)
Two or more races (7.08%)
Asian (6.92%)
Black or African American (3.2%)
Other race (2.16%)
Native American (0.23%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 45,613 | 80.41% |
| Two or more races | 4,019 | 7.08% |
| Asian | 3,925 | 6.92% |
| Black or African American | 1,816 | 3.2% |
| Other race | 1,226 | 2.16% |
| Native American | 129 | 0.23% |
Married
Widowed
Divorced
Separated
Never Married
Grafton's average per capita income is $68,438. Household income levels show a median of $127,162. The poverty rate stands at 3.41%.
Name | Median | Mean |
|---|---|---|
| Married Families | $162,270 | - |
| Families | $149,586 | $167,911 |
| Households | $127,162 | $149,777 |
| Non Families | $59,860 | $72,908 |
Average Income
Median Household Income
Poverty Rate